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参数资料
| 型号： | L6226Q |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 2.8 A, QCC32 |
| 封装： | 5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32 |
| 文件页数： | 2/29页 |
| 文件大小： | 480K |
| 代理商： | L6226Q |
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Circuit description
L6226Q
10/29
Doc ID 14335 Rev 5
4
Circuit description
4.1
Power stages and charge pump
The L6226Q integrates two independent power MOS full bridges. Each power MOS has an
RDS(on) = 0.73 Ω (typical value @ 25 °C), with intrinsic fast freewheeling diode. Cross
conduction protection is achieved using a dead time (td = 1
μs typical) between the switch
off and switch on of two power MOS in one leg of a bridge.
Using N-channel power MOS for the upper transistors in the bridge requires a gate drive
voltage above the power supply voltage. The bootstrapped (VBOOT) supply is obtained
through an internal oscillator and few external components to realize a charge pump circuit
as shown in Figure 5. The oscillator output (VCP) is a square wave at 600 kHz (typical) with
10 V amplitude. Recommended values/part numbers for the charge pump circuit are shown
in Table 6.
Figure 5.
Charge pump circuit
Table 6.
Charge pump external components values
Component
Value
CBOOT
220 nF
CP
10 nF
D1
1N4148
D2
1N4148
相关PDF资料 |
PDF描述 |
|---|---|
| L6227N | STEPPER MOTOR CONTROLLER, 2.8 A, PDIP24 |
| L6228Q | STEPPER MOTOR CONTROLLER, 2.8 A, QCC32 |
| L6228QTR | STEPPER MOTOR CONTROLLER, QCC32 |
| L6229D | BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO24 |
| L6229N | BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDIP24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6226Q_10 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DMOS dual full bridge driver |
| L6226QTR | 功能描述:功率驱动器IC DMOS Full Bridge Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6227 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER WITH PWM CURRENT CONTROLLER |
| L6227D | 功能描述:马达/运动/点火控制器和驱动器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L6227DTR | 功能描述:马达/运动/点火控制器和驱动器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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